13347225 has 36 divisors (see below), whose sum is σ = 24136476. Its totient is φ = 7050240.

The previous prime is 13347223. The next prime is 13347233. The reversal of 13347225 is 52274331.

It can be written as a sum of positive squares in 6 ways, for example, as 1320201 + 12027024 = 1149^2 + 3468^2 .

It is not a de Polignac number, because 13347225 - 2¹ = 13347223 is a prime.

It is a super-3 number, since 3×13347225³ (a number of 22 digits) contains 333 as substring.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13347223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30609 + ... + 31041.

Almost surely, 2^13347225 is an apocalyptic number.

13347225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13347225 is a deficient number, since it is larger than the sum of its proper divisors (10789251).

13347225 is a wasteful number, since it uses less digits than its factorization.

13347225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 578 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 13347225 is about 3653.3854162954. The cubic root of 13347225 is about 237.2085436760.

The spelling of 13347225 in words is "thirteen million, three hundred forty-seven thousand, two hundred twenty-five".